Canon has filed a new patent: EF-S 15-53mm F/2.8-4 Lens for its APS-C sensor DSLR cameras. This should be an improvement on entry level kit glass. Maybe Canon starts to actually invest in their crop systems.
Take a look at the patent details below translated by Google.
Patent Publication No. 2015-152765
- Published 2015.8.24
- Filing date 2014.2.14
- Focal length 15.40 20.46 51.00mm
- Fno 2.80 3.00 4.30
- Half angle of view ω 41.57 33.73 14.99 °
- Image height 13.66mm
- Overall length of the lens 119.65 123.99 149.53mm
- BF 35.93 38.66 50.56mm
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